Incubator.



PATENTED AUG. 4, 1903.. P. PEDERSEN.

INGUBATOR.

' APPLICATION FILED JUNE 13, 1902. no MODEL.

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WITNESSES: I I mgr/Tan J pa o \Mmm I I'TT No. 735,409. PA TENTED AUG. 4, 190a.

P. PEDBRSEN.

INGUBATOR. APPLICATION FILED JUNE 13 1902. N0 MODEL. 3 SHEETS-SHEET 2.

mvshron Paint, Fm

BY -W ATTORNEY.

WITNESSES as on the line 7 7 of Fig. 3.

NITE STATES Patented August 4, 1903i 7 FFICE.

PATENT INCUBATOR.

SPECIFICATION forming part of Letters Patent No. 735,409, dated August 4, 1903.

Application filed June 13, 1902.

To aZZ whom it may concern:

. Be it known that LPEDER Pnnnssnma citi zen of the United States, residing at Bakersville, in the county of'Atlantic and State of New Jersey, have invented certain new and useful Improvements in Incubators, of which the following is aspecification.

This invention relates to incubators, and has for itsobject to provide a simple and efficient constructionwherebyaccess may be readily had to various parts thereof, whereby a uniform temperature may be maintained throughout the incubating chamber, and whereby proper ventilation of the interior of the apparatus may be secured.

. With this object in View my invention comprises various novel features of construction and combinations of parts which will be hereinafter fully described and claimed.

'In the drawings, Figure 1 is a plan view of my improved incubator. Fig. 2 is a front elevation thereof, one of the doors being shown in the open position. Fig. 3 is a horizontal section as on the line 3 301: Fig. 2. Fig. 4 is a vertical section as on the line 4 4 of-Fig. 3. Fig. 5 is a vertical section as on the line 5 5 of Fig. 4, including the racks 18 and drawers '19. Fig. 6 is a vertical section as on the line 6 6 of Fig. 4. Fig. 7 is a vertical section through the air-heating chamber Fig. 8 is a horizontal section thereof as on the line 8 8 of Fig. 7. Fig. 9 is a sectional detail as on the line 9 9 of Fig. 3.

Numeral 1 designates a suitable casing,and 2 the supporting-legs therefor. The casing in its preferred form comprises the top and bottom 11 and 12, respectively, the side walls 13, the end walls 14, and the inner transverse wall 15, the latter Wall extending between the side wa1ls13 and being connected by a centrally-located extension 15 with the ad jacent end wall 14.

16 is the incubating-chamber, in which are arranged transverse rails 17, which support the egg-racks 18 and also the drawers 19 for the reception of the hatched birds.

The front wall 13, opposite the racks 18 and drawers 19, is cut away to afford a space 20, which is closed by a door 21. The wall 13, within the space 20 and directly in front of the racks 18 and drawers 19, is provided with front walls of said drawers.

'partments26 27.

Serial No. 111.463. (No model.)

withdoors 22, whereby the incubating-chamberis kept closed, and whereby also access may be readily had to the racks, the opening opposite the drawers 19. being closed by the By this construction I am enabled to remove the hatched birds from the drawers 19 without opening the incubating-chamberin front of the egg-racks or to remove the egg-racks without opening said chamber in front of the drawers, thereby permitting free access to the eggracks and drawers without liability of material change in the temperature of the incubatingchamber.

Supported by a bracket 23 is the heating device, usually a lamp 24 as shown, which communicates with the centrally-disposed pipe 24 of an air-heating chamber 25, which is fitted to an opening within one of the end wallsl4, the inner wall 15, its extension 15, and the adjacent side wall 13, from which it may be readily removed for cleansing. This chamber in its preferred form comprises a rectangular casing,of sheet metal or any suitable material, which is divided into two com- The inner compartment 26 surrounds the pipe 24 and opens into a horizontally-disposed pipe 28, arranged above the egg-racks 18, and the outer compartment 27 surrounds the inner compartment 26 and is provided with openings 26*, which communicate with the incubating-chamber by suitable passages 29, arranged in the wall 15 and extension 15. The pipe 28 extends through the center of the upper portion of the incubating-chamber and is provided with a transverse member 30, which is provided along its bottom with openings 31, through which warm air passes frolnthe chamber 26 to the incubating-chamber 16. The pipe 24 is detachably fitted to and opens into a horizontal pipe 32, arranged on a ledge 33 above the egg-rack. This pipe 32 extends around the incubating-chamber; and has direct connection with the lamp 24 through the pipe 24. Fitted to the free end of the pipe 32 and extending upwardly therefrom through the casing is a vertical pipe 34, having an open end 35, which communicates with the external atmosphere. The open end 35 of this pipe 34 is controlled in the usual manner by a suitable thermostatic bar 36, arranged in the incubating-chamber, whereby the current of hot air passing from the lamp 24 through the pipes 24 32 may be nicely regulated. The top of the wall and extension 15 is cut away above the air-heating chamber 25, as shown in Figs. 3 and 4, to afford a space forthe passage of the pipes 28 and 32 to said chamber. This space is separated from the incubating chamber by a plate 33*, through which the pipes 28 and 32 extend and which rests upon the ledge 33 of the wall 15. The fresh air enters the heating-chamber through passages 37, located in the bottom thereof,and afterbeing heatedin said chamber passes by way of the openings 29 and pipe 28 to the incubating-chamber. By this construction,plus the arrangement of the fresh-air passages in respect to the pipe 24, it will be seen that the air passing through the compartment 26 is heated to a greater degree than the air passing through the compartment 27 and that in view of the described location of the lamp 24 and air-heating chamber 25 the temperature is increased of that portion of the incubating-chamber next adjacent said lamp and heating-chamber. Consequently the heated air is conducted from the compartment 26 through the pipe 28 to a point near the end of the incubating-chamber opposite the lamp 24 and from the compartment 27 through the passages 29 to a point in the incubating chamber adjacent said lamp. Y To permit the warm air to escape from the incubating-chamber and also to insure the proper ventilation of said chamber, I extend through the casing l a series of airducts 38, which communicate with the external atmosphere by openings 39 at the top and bottom of the casing and with the incubating-chamber 16 by openings 40, arranged near the; respective cornersof said chamber. The openings 39 and 40 are provided with slide-valves 41, by means of which the passage of air to and from the incubating-chamber may be regulated.

By the above-described arrangement of the air-passages and the radiation of heat from the pipe 32 I am enabled to maintain a uniform temperature in all parts of the incubating-chamber.

The pipes 28 and 32 are tied together by cross-bars 42, thereby forming an integral structure, which may be readily removed from the incubator through an opening 43 in the front wall 13 of the casing, said opening 43 being normally closed by a door 44. The pipe 32 is provided with extensions 45, which rest upon the ledge 33 when the pipe is in the incubator. The end of each of the extensions 45 is closed by a head 46, fitted thereto,

which maybe readily removed for cleansing the pipe 32.

I claim- 1. In an incubator the combination of a casing, a chamber therein, a heating device including two air-heating compartments one located within the other, said compartments communicating with said chamber and the .external atmosphere, and air-escape ducts leading from said chamber.

2. In an incubator, the combination of a casing, a chamber therein, a heating device,

chambers beingnear and away from said heating device, respectively, and air-escape ducts leading from said chamber.

4. In an incubator, the combination of a casing, a chamber therein, a heating device, aseries of pipes arranged in said chamber and detachably connected to said heating device, said casing being provided with an opening to permit the removal of said pipes, and means for closing said opening.

5. In an incubator, the combination of a casing, a chamber therein, a heating device, a series of pipes forming an integral structure and connected with said device, and removable heads on said pipes.

6. In an incubator, the combination with a casing, a chamber therein, a heating device, means for introducing air from said device to said chamber, and air-passages extending through the casing and communicating with the external atmosphere at the top and bottom of said casing, said passages also communicating with the chamber.

7. In an incubator, the combination with a casing, a chamber therein, a heating device, means for introducing air from said device to said chamber, air passages extending through the casing and communicating with the external atmosphere at the top and bottom of said casing, said passages also communicating with the chamber, and valves for regulating the passage of air through said passages.

In testimony whereof I affix my signature in presence of two witnesses.

PEDER PEDERSEN.

Witnesses:

WALTER FIFIELD, F. EDGAR SMITH. 

